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Groups > comp.lang.python > #101859
| From | <paul.hermeneutic@gmail.com> |
|---|---|
| Newsgroups | comp.lang.python |
| Subject | Re: "x == None" vs "x is None" |
| Date | 2016-01-17 11:01 -0700 |
| Message-ID | <mailman.74.1453053678.15297.python-list@python.org> (permalink) |
| References | <n7fo7q$dso$1@news2.informatik.uni-stuttgart.de> <mailman.57.1453025729.15297.python-list@python.org> <n7fshb$f36$1@news2.informatik.uni-stuttgart.de> <CAPTjJmrDZCiDLmRtiukDv2Z1Gz69fz3+_4xYeu-PoXBdC3dtGg@mail.gmail.com> |
I prefer (x is None) and (x is not None). This matches the SQL concept of NULL. (X = NULL) is not valid since NULL is not a value and cannot be compared with anything.
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"x == None" vs "x is None" Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2016-01-17 09:51 +0000
Re: "x == None" vs "x is None" Chris Angelico <rosuav@gmail.com> - 2016-01-17 21:15 +1100
Re: "x == None" vs "x is None" Ulli Horlacher <framstag@rus.uni-stuttgart.de> - 2016-01-17 11:05 +0000
Re: "x == None" vs "x is None" Peter Otten <__peter__@web.de> - 2016-01-17 12:26 +0100
Re: "x == None" vs "x is None" Chris Angelico <rosuav@gmail.com> - 2016-01-17 22:29 +1100
Re: "x == None" vs "x is None" <paul.hermeneutic@gmail.com> - 2016-01-17 11:01 -0700
Re: "x == None" vs "x is None" Random832 <random832@fastmail.com> - 2016-01-17 16:33 -0500
Re: "x == None" vs "x is None" Chris Angelico <rosuav@gmail.com> - 2016-01-18 08:38 +1100
Re: "x == None" vs "x is None" Ben Finney <ben+python@benfinney.id.au> - 2016-01-18 13:46 +1100
Re: "x == None" vs "x is None" fernando junior <fernandojr.ifcg@live.com> - 2016-01-19 14:20 -0800
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